I rent my flat out as a bit of a future pension thingy, the estate agents put a charge on a couple of months ago for a “deposit registration” fee, which on enquiry turns out to be the fee they pay to register the tenant’s deposit with the TDS. Now, it’s not a big charge but I had no idea it was coming (current estate agents took over the previous ones, who didn’t charge such a thing), and on having a quick browse around t’internet, there seem t be places that offer it free, so am I obliged to accept that fee without prior notice, and are they having a laugh charging me for something that can be done free?