What happened:
I deposited 600$ on 16 of march, played few sports bets and after i won 604$ more i ordered a withdrawal on 20th of march and they put my withdrawal on hold cause their sport provider found some fraudlent activity in winning 600$ in few matches (!!!) and today they said this 'Hey, digga. Your account has been permanently suspended on Sherbet, and all withdrawals/balances have been frozen due to fraudulent activity on our sportsbook (as stated by our provider).
hi OP I'm really curious what happened to your account, did you violate any of the rules they made --
11. Prohibited Uses
Personal Use: The Service is solely for the User's personal use. The User is only allowed to wager for his/her personal entertainment. Users may not create multiple accounts for collusion, sports betting, and/or service abuse.
AML & Sanctions Compliance: Sherbet expressly prohibits and rejects using the Service for any form of illicit activity, including money laundering, terrorist financing, or trade sanctions violations, consistent with various jurisdictions' laws, regulations, and norms. To that end, the Service is not offered to individuals or entities subject to the United States, European Union, or other global sanctions watch lists. Using the Service, you represent and warrant that you are not so subject.
Jurisdictions: Persons located in or reside in Australia, Belarus, Côte d'Ivoire, Cuba, Curaçao, Czech Republic, the Democratic Republic of the Congo, France, Germany, Iran, Iraq, Liberia, Libya, Lithuania, Netherlands, Portugal, Serbia, Slovakia, South Sudan, Spain, Sudan, Syria, United Kingdom, United States, Zimbabwe (the "Prohibited Jurisdictions") are not permitted make use of the Service. To avoid doubt, the restrictions on engaging in real-money play from prohibited jurisdictions apply equally to residents and citizens of other nations while in a prohibited jurisdiction. Any attempt to circumvent the restrictions on play by persons in a prohibited or restricted jurisdiction is a breach of this Agreement. An attempt at circumvention includes, but is not limited to, manipulating the information used by Sherbet to identify your location and providing Sherbet with false or misleading information regarding your location or place of residence.
The attempt to manipulate your real location through the use of VPN, proxy, or similar services or the provision of incorrect or misleading information about your place of residence, with the intent to circumvent geo-blocking or jurisdiction restrictions, constitutes a breach of Clause 5 of this policy.
Some games are not available in certain countries due to licensing restrictions. You can find more information about provider restrictions here.
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https://sherbet.com/policies/termsfrom their statement above that your account is frozen because of a report from the sherbet sportsbook provider, which means a third party has reported the suspicious activity. you have also made a post on their ANN thread, hopefully, there will be an answer in the next 24 hours.
good luck!