Abell Pest Control

This is an apartment building. my tenant had bedbug problems and we hired Abell. We didn't find but the tenant found him off the internet. we later spoke to Abell, they were very helpful and sent instruction a day beforehand to solve the problem. They guy later showed up and cleared the issue. The $700 involved 3 treatment. Couple months later, another tenant had the same issue but then found out the other company charges $400 for 3 treatement. Abell over charges on this service