PellyPelly refuses to refund after getting my account banned

Hello, i made this account solely to get my refund from him.

Scammer's profile link:
Pellypelly

edit:
Pelly's unique discord ID: 343435299805855745
Her discord profile: Screenshot - f6de6d330b10040d93a93255f6d79af0 - Gyazo

We agreed on a GPXP for runecrafting of 50. I paid increment of 15M, he gave a discount which made it that he had to runecraft 333K xp for 15M GP.
Screenshot - 747b6ecb8f243b728ba4db20a0caf688 - Gyazo

He did around 200K RC xp before the account gets temporarily banned for Bot Busting Moderate
Screenshot - 6f525613a5bb4e1167d85863bfc0908b - Gyazo
Screenshot - 1514dfd764ffc97d85d0cb2fd560c5bf - Gyazo

I did the calculations and requested a 4.8M GP refund for the XP he didnt do. He refuses because he thinks he can hide behind his tos yet he got the account banned:
Screenshot - c4e42b6df6d10474f7e59507a53365a6 - Gyazo


I see he is banned now so I dont really have any hopes in getting the refund. While it is only 4.8Mil, it'll show that this guy is petty.

 

added, thank you