*******- interest additional

I have a store card with Woolworths since 2018 Due to covid financial crisis is a real thing I then told woolies that I can afford a mini payment and they accepted however they went and put me on a 14th month payment plan that I had no idea off , added additional Interest on the instalment . So my current interest on the account is 18% then added an additional sliding scale interests on the payment plan so now u paying over 30% interest and you don’t even know until u see the statement cause they *******ly do this without u knowing. They are *****ing from paying customers who are trying .