UnitedVenture provided defective product

I'm writing to complain about the return process I received from UnitedVenture. After paying $409.17 for unit, I found that it had repeated billing errors. I've tried resolving this with your customer service team multiple times, including speaking with Elvie M., but have not received a satisfactory resolution.

I'm writing to complain about the return process I received from UnitedVenture. After paying $409.17 for unit, I found that it had repeated billing errors. I've tried resolving this with your customer service team multiple times, including speaking with Elvie M., but have not received a satisfactory resolution.