I have contact three, I have been in the shop that told me that I would receive receipts, they have told me to go back to customer services who after 30 seconds 'disconnected' my message for no response. I have spoken on the phone to finance and to customer services. They will not give me a receipt for a payment, it's not good enough. I now cannot claim back the £48 a month for my device, as our finance team need a receipt, proof of purchase, not a payment schedule. In this day and age, all I ask is that they generate a receipt, proof of payment.
