warant. coverage issue?

[babair]

ok i need some help on this. i got to bring my phone in since my touchscreen has been being really screwy. so i do a hard reset everything to try and see if maybe it was just software well no such luck. wel when i go to pull the battery of i realize the little white button in the bottom corner is pushed in like it was poked. has anyone else had this problem and trouble doing warantee issues at a sprint store?