Helow, I paid to unlock the chapters but didn't get any coins, what's is wrong?. Please unlock the chapters or return the money

I have paid for the next chapters but didn't get the coins. What is wrong?

I paid the money but didn't receive the coins, what's wrong?

An error code of 10001.., after money being successfully deducted, what is happening?

Hellow ,I have paid and the money was successfully deduct but told that there is an error code 10001.., what is happening?

I paid for the chapter but it didn't get unlocked please do something about your app and refund me or unlock for what I have paid, thank you.

And you have deducted two times without opening the chapters or giving me the points to open them

Hey, why are you deducting my money without opening the chapters?

This is as many times as I can ask. Why are you deducting my money without giving me points? Why are you not unlocking the chapters despite of paying successfully?

This is the fourth time am paying and my money is deducted but without chapters unlocking. What is wrong with this platform

Helow, I have been paying successful but later the message pops that have not paid and the chapters doesn't open. What is wrong?