I opened and account with XXXX with a 30 day money back guarantee. I did n't end up using the account and closed with-in the 30day trial period. When I called to cancel, the agent i spoke with explicitly told me that, given i was cancelling with-in the trial period i will not be billed. 
I was billed and upon contacting XXXX the agent politely informed me that i do n't have to pay anything as i canceled in the trial period. 
Now they have handed over my account to debt collection who keep calling me every day. I have reached out to XXXX and they have no clue why there is any collection call. The whole fiasco is a testament to poor management at XXXX