I offer a reduced service as well, and it's really funny how clients react when I tell them. Some are fine and some of them get so embarrassed over the phone that they start stammering and erm arh and can't get off the phone fast enough, it's like they're gonna catch it
I have very irregular and heavy periods at the moment and am trying all sorts of stuff to sort them out. You can try a couple of natural remedies (check they don't react with any medication you are taking).
One is Shepherds purse, which can stop heavy bleeding, I used it last month after a very long and very heavy period wouldn't stop and it worked like a dream, but this month it didn't seem to have an effect, but I did run out after 3 days. You can buy it online, or if you are in south east London you can buy it in a shop there.
The other is to take DIM, it takes about 3/4 months to see a difference, but it tackles excess estrogen, again check to see if this is what is causing the irregular periods. I got mine on amazon and have just started taking it, so I have no idea if it works. Apparently it helps the liver to get rid of the excess estrogen.
Do you know what type of coil you have? The copper one or the Merina (sp?) one? Because the merina one can cause spotting and irregular periods. And the copper one can cause really heavy and long periods.