Ludicrous decline of upgrade

Today I attempted to upgrade as I qualify for an upgrade according to vodacom. At vodacom branch I was told that I do not qualify for R350 for 24 months tablet. They then escalated the matter. Now I received feedback and the ludicrous reason is that I might have skipped a payment on the account or other accounts. I have never skipped any payments or any accounts in the last 3 years!!!! Recently I upgraded my contract with cellc hassle free!!!!! You can keep your stupid contract. I'm done with vodacom. That's how you treat your loyal customers!!!!!!