Horrible communication. Doesn't return calls for ...

Horrible communication. Doesn't return calls for weeks, if at all. After leaving 3 messages over 2 weeks got return call & they closed our pool & installed pro-mesh cover summer 2018 - good job - I paid timely and in full. Bob agreed to come back 2019 to open pool and help us replace heater & locate small leak in plumbing. I left 4 messages March thru April to get on schedule...Bob returned 1 call during business hours which I couldn't answer. I left at least 7 messages between phone & Facebook (confirmed seen/read) and received zero response. I gave up & took my money somewhere else.