Dissapointed client of over 10yrs

For almost 9 years with Foschini i have had the worst experience ever on 06/12/2018. I have been with foschini for 10 years+ unemployed for 6years and never once had an issue until they decided to block my account, Im very dissapointed to say the least in the service ive received from Foschini. No notice of why the account has been blocked while ive paid it up but could not use the account. Im disgusted in the poor service they rendered to me. Is this the way you treat clients who have been using your business for over 10 years well its disgusting.