double charged and no response for over a month

I must say that i am highly disgusted and disappointed with service from your company. I spoke telephonically on the 8.04.15 to a consultant and emailed her on that very day which she agreed to get back to me ASAP which she did not, I than emailed her again on the 20.04.15 asking for feedback she than rep**** she would credit the amount and cancel the one device for me, I than asked for a proof of cancellation and proof that we have been refunded but no reply. I thank emailed her again on the 29.04.15 and again on the 5.05.15 and no reply. If this matter is not resolved latest by Friday 8.05.2015 @ 9am. If this is not done I will be taking this matter further by cancelling the debit order on both my companies accounts with yous and please bare in mind just my branch alone have 7 vehicles with the company and I'll be pleased to let the rest of the network know about this service and may be even consider finding a new service provider who will be happy to assist us.<br> <br> I have now also contacted the chief opertating officer and was promised to have a call back in 15 minutes, lets hope that this is 1 promised the company ALTECH can keep