If you have BURST, depending on what you want to exchange it for, you should consider trading using BTDEX. No need to EVER lose control of you coins. No KYC. Low fees. Unstoppable regardless of country.
Sorry if you are already aware of all this.
It's common for people to NOT use BTDEX because you need to have some BURST even if you want buy BURST. But since you have BURST, you are all set.
I hope Vindex gets this corrected for you soon