Bad service

called Telekom call center on 081 180 that was Tuesday asking for my mobile invoices for tex return purposes and I was promised that I will receive my invoices from 25 March 2020 within 24hours until now I didn't receive my invoice from their back office as they call it.

I called them today 2 December 2021 I called 081180 their line dropped twice in my ear called again was told to call ***0 they willl be able to assist me I called the number twice and I was referred back to 081 180 as the consultant told me that they cannot assist me and they don't have a direct line for contract billing. I am left confused and disappointed by Telekom call center agents clearly they don't know what they're doing they provided me with incorrect information and they are not only confusing us as customers but them as well.

I want my invoices can a competent agent or department contact me or email me my documents urgently please.