I have worked with Amazon Simple Pay in the past and have had to inquire several times about their sketchy business practices. In fact if you have a little time on your hands, just do a simple Google search for "Amazon Simple Pay complaints". I am sure that it will take more than just a little time to peruse the results, much less open and read each one. There is no doubt that complaints about such a large company will fall on deaf ears. After all, who wants to take on Amazon? Who do you go to, and I am just guessing that they will have a swift answer for you when you do inquire and then the case will be closed, so why waste your time right? As part of Amazons customer verification practices, when a seller opens a business account, they must submit a bank account for fund transfers.
When a customer enters their bank account information, Amazon makes two small deposits into the account. The two deposit amounts must then be entered into Amazons system so that they can "verify" the bank account before funds can be transferred. In the meantime a seller is allowed to collect funds from their customers for products, services, etc. After a few weeks and after you have accumulated a rather large sum of your customers funds, you will find that you are still awaiting the two small "deposits" into your bank account from Amazon. You will make several attempts to contact Amazon about the deposits and you will receive a response, usually within 2-3 days. The response will undoubtedly be "We were unable to verify the two deposits into you bank account". This is a scripted answer, as I have found from perusing others complaints from around the world. The sad fact is that Amazon never makes the two small "deposits" into your bank account. This will leave you in quite a predicament for quite a while.
You will most likely continue using the credit card processing service as you do not want to disappoint your customers. However those two small "deposits" will never come and you will be unable to withdraw any of your funds. I personally submitted 3 bank accounts, even opening one of them solely for the purpose of collecting my funds from Amazon. The first two bank accounts were completely valid, I have had them for several years without a single problem. However for reasons only known to Amazon, the two small "deposits" that they submitted never found their way into any of my bank accounts. I was forced to cease using their service because I was unable to collect my customers funds from Amazon. I am sure that this is a routine complaint for you guys and if a human ever reads this, it will simply be dismissed as an "isolated case". I can assure you however that I am not the only one that has experienced this issue.
As I stated earlier, please take a few minutes to search the internet for complaints about Amazon Simple Pay. I am sure you will be surprised. Please take the time to investigate this issue in detail. If you do decide to contact Amazon, please do not accept the first response that you receive. Please take the time and initiative to actually investigate Amazon Simple Pay.