Extremely Disappointing Service

I am deeply disappointed with the service I received from Fastrak (FTS). My experience with them has been nothing short of frustrating and unprofessional Firstly, their lack of respect for customers when one has problem with the product I bought Bluetooth speaker so that i can use at work when am working nightshift the speaker has problem with charging when I went their 5 day after I had the speaker the 3 guts at Fastrak Everton Mall was so rude disrespectful because they say I lost the sells slip the guy who sold me the speaker he even remembered me but I couldn't believe his attitude the other two joined in start talking over me well am explaining my issues anyone wanting to but anything from Fastrak Everton Mall think twice they guts there are very rude and disrespectful.