INCONSISTENT CHARGING ON MY INVOICE EVERY MONTH BY TRAFALGAR PROPERTY MANAGEMENT

Trafalgar property management has done it again. after we have agreed in the past that they will not charge me any interest on my account as long as I pay every month, due to my salary coming in the middle of the month after the 7th of each month. This month-October, they have decided to charge me almost a R1000 worth on my invoice. Their invoicing is inconsistent charging us R6000 levies each month. Every month the levy is increased with a couple of hundreds. This is ******* at its best.