Bad Service no reason for application decline

I am really dissapointed in the service i have received thus far from vodacom. I have a contract with vodacom and been a loyal client never a missed a single payment . I recently tried to apply for a contract and was told i have too many lines contract still new. Ive had my contract for more than 3 months and have a very good credit record. I app**** for the Huawei p20 lite. I would like my application reviewed and escalated or do i have to try telkom or mtn or cellc im sure id get a better deal.