It's rare in marketing that you work with a supplier (certainly in a complex and sensitive field like credit card clearing) and you don't have to follow up all the time and stress, but are constantly updated and things move forward.
Sure if this is the world of finance and everything must be up to date and in order.
Thank God, I have entrusted him with incredibly complex and extremely stressful projects of website integrations, updates, repairing damage from other providers and I have always received fast, pleasant service and with a smile.
If it is not clear, I highly recommend Hagai and IntelliNet.