Payment systems

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Services in numbers


Of users mentioned that bug equals security


Of our clients expand their project after 1st wave of testing


Of our clients stated that mass testing is a must have practice

It takes 12 positive customer experiences to make up for one negative experience.

It is 6-7 times more costly to attract a new customer than it is to retain an existing one.

89% of consumers have stopped doing business with a company after experiencing poor customer service.

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Sample of Digital Products Testing program and analytical report.

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How does we work?

  • Send us your request
  • We form the team according to your needs
  • We test your payment system
  • You receive the full list with all weaknesses
  • You receive the fixing instructions

Our high quality standarts

  • quality01

    Agile approach

  • verified
  • Target audience selection

  • verified
  • Global coverage and different card types

  • verified
  • Data quality check

They have already improved their performance

unicredit - Payment systems


“It’s worth noting the following advantages of working with 4Service Group: – User friendliness of “Shopmetrics” platform. – A large base of mystery shoppers, thus facilitating “rotation” standards. – Flexibility and high-professionalism of the project team. As a result of our experience, UniCreditBank would like to fully recommend 4Service Group as a reliable and competent Mystery Shopping provider.”

get taxi - Payment systems


“While working on the projects, 4Service has demonstrated it’s ability to approach the tasks with full responsibility, to perform the work properly and in time. Distinctive features of the «Scheduling Worldwide» work are its high professionalism, organization of the employees and experience in improving customer service.”

ipsos - Payment systems


“When there are requests for mystery shoppers we consider Scheduling Worldwide in the first place. ”

pzu - Payment systems


“PZU has been working with 4Service Group since 2011. The company implemented the Mystery Shopping program, which included the individual questionnaire which had been specifically developed according to our company standards. We receive regular updates on the monitoring results and also regular presentations of the outcomes.”

societe generale - Payment systems

Société Générale

“The broad base of Mystery shoppers allowed to provide their constant rotation of visitors and low recognition throughout the project. This gives us confidence in that the assessment of the work of the personnel is carried out independently and objectively.”

jysk - Payment systems


“The polls are carried out with a certain frequency in order to keep track in time; the procedure has been done for decades. We conduct them once in half a year, measure brand knowledge, brand attitude, consumer perception of price level, quality level compared to specific competitors as well as how our consumers perceive the level of service in the store, that is, we evaluate all the factors. ”

Make sure your payment system works properly and for the sake of your business

As your approach to customer service grows, the attitude of your customers also changes. Their loyalty towards your company constantly increases providing you with utmost advantage among your competitors

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6 Things You Didn’t Know About Your Employees

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