Social housing group GreenSquare is facing increased pressure to improve its service to tenants.
GreenSquare owns and manages over 12,000 homes in the region, with around 7,000 of these in north Wiltshire.
Chippenham MP Michele Donelan says she has received 61 complaints in the past six months and now wants tenants who have a grievance to get in touch.
"I worry greatly about the ones that are not approaching me for help and urge anyone impacted to seek my assistance.," she said.
"Also the severity of some of the cases I have had are alarming to say the least."
She said there remains a disconnect between the policies and assurances given from the top versus what the frontline customer services are offering especially with the out of hours service.