Bad service

Bad service from foneyam about three months ago I took out a phone from foneyam Motorola E14 I returned the phone the same day due to software issues when firmware upgrade would take place it would wipe the phone and lock it. After so many emails asking them if they could accommodate me a better phone no reply . So I requested a refund on my deposit and needed to wait seven days for that. After telling them how many times I do not have the phone the couriers already collected the phone from MetLife mall and they must check their emails for correspondence in regards to this problem because for security reasons pep managers cannot email phoneyam from pep email addresses if they check they will see hundreds of emails from pep managers from Gmail accounts. So this morning I received this SMS FoneYam: You did not make the agreed rental payments and you are in arrears with 669.21. Pay 0.00 to unlock the device for 30 days. If minimum payment to unlock is not made by your contract will be cancelled on . You will remain liable for arrear rental and cancellation penalties. How must you pay for something you don't even have managers at foneyam must start to give service to people I have on record many emails asking them to accommodate me with a better phone and they ignored me so I got my money back from pep.