Signal denied by bank.

 
Every time I want to purchase a signal and payment by bank card, the bank always denied the purchase. But the bank allows purchases in other sites, except in mql5 signals. What could be the possible reason? Thanks for the help.
 

It is recommended to do it on the following way:
deposit full amount to your forum account/profile, and pay directly from your MQL5 forum profile.

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How to Subscribe to MT4/MT5 Signal - the instructions
https://www.mql5.com/en/forum/189731
  (MT4)
https://www.mql5.com/en/forum/336422
  (MT5)

How to Subscribe to a MT4 Signal (new instructions, after 1065 version upgrade) - How to subscribe to a MΤ4 signal on MT4 platform
How to Subscribe to a MT4 Signal (new instructions, after 1065 version upgrade) - How to subscribe to a MΤ4 signal on MT4 platform
  • 2017.04.10
  • www.mql5.com
In the   deviation/slippage   field, select an option and click   ok   in the   options   window to close it. Go to the   search area   of your mt4 platform, on the upper right corner (where the magnifying glass is), type in the name of the signal you want to subscribe and click   enter