I purchased my galaxy s8+ at best buy and am having major issues. Where do I take it for resolution?

BACK TO BEST BUY.

If its under a year old from your purchase date then definitely take it to best buy, other then that you probably will have to deal with Samsung or a third party.

Depends what's the issue... but i assume you can go to best buy. Or, just go to your phone company...

Thank yall so much. Heading to BB

If it's been less than a year since you purchased it, repairs are covered under the manufacturer's warranty. If not, did you purchase an extended warranty for it? If you did, it'll be covered under that warranty. If not, you'll have to pay for any repairs. Whatever your warranty situation is, go to Geek Squad at Best Buy, they can help you.