Discovery does not stand by its long term clients

I have been with Discovery for 14 years. I have a sizeable investment with Discovery, a Life policy, Medical aid and Insurance with Discovery. I work as a freelancer and sometimes have delayed payments. Now, I have been blocked from my account due to about R2000 payment outstanding on my account. I took out a revolving credit loan out some time back to cover me in such circumstances until the withdrawal from my investment comes available. But Discovery still refuse to unblock my account until a payment is made. What is the point of remaining with Discovery when they can clearly see I can easily cover the R2000 within in the month and probably will be able to do so when my client pays me even before the investment withdrawal comes through. What is the point of remaining with Discovery if they can't cover me for a short period? I need a good reason to remain with Discovery before pulling my investment, banking, medical aid and insurance accounts from Discovery.