Locked my storage without notification

My store was locked without notice - I will get legal advise as well. I never received invoices but paid every month. I also do not have a signed contract for my unit. I do not receive any feedback from Branch manager Tania, or Regional Manager, Lizette Straight after my complaint, it was easy to send me a letter of a price increase, from R1500 p.m. to R1650 p.m - making them officially the most expensive storage on the East Rand. I have sent all my friends, family and customers to them, but after this, I will no longer support them. I need my goods to be released - but no support received.