OK, so after a week of trying to pay following a successful test I tried to pay on the first pay box which is the Visa/MasterCard option and like marcoxx I GET ERROR .
So I try every payment system only to fail every time, so I read the forum only to find that my mistake was I was trying to pay with my English visa card and part of the verification system is the following:
A/ you must have the correct Address for the card.
B/ A mobile phone registered in the same country.
C/ The computer you are trying to pay with must have the same I.P. Country address.
Which was my mistake; I live in England but was in my house in Spain, so my I.P. address was the problem, which I have now overcome, and guess what? My payment went through instantly; paid €20 got €28 OK now till September 2016.
Thanks’ to all at the forum for your help.
Minto