NORTHWEST POOL PLASTERING

We drained the water, and they came out while it was raining very hard.  They put a tent over it, but the first day it rained them out.  They never did the grout because it washed away.  They gunited and plastered the pool.  We filled it back up, and he came out and refunded me $300 for not doing the grout.  When we looked down at the pool we thought it looked streaky, he told us it would dry out evenly and he would come back and look at it.  He never came back.  We closed it up at the end of last summer, but when we opened it back up this July we noticed there were a lot of spots without plaster and gunite.  I've tried calling them multiple times without hearing a response.  Now I'm going to have to redrain and fill the pool, and also have someone come out to regrout the pool.