Accounts department is a JOKE

On 20th of May, I emailed Sadv with regards to finding out about a line speed upgrade. After NUMEROUS attempts to actually get the accounts team at SADV to respond to a mail, I finally managed to get someone from Tech support to walk over to the accounts team to get the line upgraded. This happened on the 1st of June. Halfway thru June, SADV upgrade their core systems and low and behold, I am back on a 20meg line. Since this has happened I have been on the phone constantly trying to get someone to sort this out, and as of Yet, the accounts department at this company has made NO effort to contact me for their mistake. Not a single person. SADV's technical department has once again tried everything they can to get this rectified but they have no access to change the line speeds back to 50/50. So here I am. CONSTANTLY contacting SADV in an never-ending cycle of 'They will do it in the morning' or 'I promise you will not need to call us again' from their support line. Worst company ever. You would think that a client that wants to pay someone MORE money would actually be contacted back.... I guess not