I have the exactly same problem, Looking for a solution too.
I received this e-mail from the costumer service when I was asking to pay using my international credit card but maintaining the same promotional price:
"Hi there,
Thanks for getting in touch.
Apologies for any frustration caused here.
Unfortunately, the 107 error can relate to any one of the below issues. Normally you can resolve this by just disabling your VPN. Please give that a go first then try the below:
“error.107.014”: ''Double check your billing details, try a new credit card, or contact your bank.",
“error.107.014”: “The card information entered is invalid. Please try a new credit card, or contact your bank.”,
“error.107.033”: “Unfortunately, we are unable to process your transaction, because the card is expired. Please try a new credit card, or contact your bank.”,
“error.107.051”: “Unfortunately, we are unable to process your transaction, because the card has insufficient funds, or is over limit. Please try a new credit card, or contact your bank.”,
“error.107.061”: “Unfortunately, we are unable to process your transaction, because the amount is over the card limit. Please try a new credit card, or contact your bank.”,
“error.107.100”: “Unfortunately, we are unable to process your transaction, because your billing country is not supported.”,
“error.107.835”: “The card CVV2 entered is invalid. Please try a new credit card, or contact your bank.”,
If you have checked all the above my advice would be to set up a PayPal account specifically for the asset store. We have very few payment issues with PayPal & it is also a quicker & easier way to purchase.
Apologies I cannot be of any more help on this.
I hope this helps.
Kind regards
Fraser
Customer Service Engineer"
Unfortunately besides the VPN solution that I’ve tried and that didn’t worked, none of ther other possible solutions would apply, since we are purchasing through PagSeguro (and I’m sure I don’t have any problem with my credit card).
My e-mail is johnnydalvi.games@gmail.com