Can't configure blockchain payments. I have both  api and everything configured.
the error I get is:
Please send 0.000000 BTC to
Error API - Malformed callback URL - Illegal character in query at index 132: https://(my-url)/oc-content/plugins/osclass_pay/payments/blockchain/callback.php?extra=us

    9[p]pr
    901x2x77[p]am
    Parameter with unsupported symbol



I sent you a private message admin.

Ok sir, doing some trial and error, I noticed the blockchain payments does not support my local currency symbol. In fact only works with USD($). How can this be rectified ASAP?