Tee Jay Traders review for Shop

Its been 2 weeks since I am trying to use the help desk and get a resolution for Shop being deactivated due to Chargeback more than 1%. How are we able to improve the performance if there is not grace period or time. The payments are processed through Shopify and not the third party. At first place shop accepted the payment, we ship it out and then after that due to chargeback the SHOP is deactivated with no notice or grace time. Can someone please assist with it. Thanks