Aspen Dental review: Service on my teeth

Went in to get my tooth pulled cause it was chipped but instead they told me they were going to put a gold tooth on top of it ,told them I didn't want it I just wanted it pulled but they insisted ,after it was done a few months later it started hurting, was hoping it would go away and stop but I think I waited too long cause it would stop hurting then start again and kept going on like that and now I have a bump on side of my gum right under the tooth I wanted pulled and I don't know what to do cause I can't afford to go back in, they charged me alot for what they did, not sure what I should do