Hello all, sorry I've been useless I haven't been on here for about 2 weeks so I will catch up tonight and apologise in advance if what I'm about to say was already discussed at length 10 days ago 
For my fellow maintenance ladies who are worried about moving prescribers or being completely cut off with a lower BMI I took the advice of contacting Oushk. I booked a £5 consultation with Hira where I explained my goals (basically want to loose 3 more pounds then not go cold turkey) and that medexpress have completely cut me off due to now being under 23.5 (I did contact medexpress to confirm if that was the case before contacting Oushk, and they confirmed they wouldn't prescribe me anymore). Long story short I've joined the taper maintenance plan, I ordered last night, cheaper than medexpress as they give you 15% off plus free P&P, you can schedule when you want it delivered and they won't cut you off after 2 years either. You can move up or down strengths. I had to send a photo and proof I'm already on MJ. It was approved this morning. Hope that helps someone who is worried like I was.