I started mounjaro 2ish months ago at £139 for the 2.5mg pen. The price for the 5mg jumped to £189 a few weeks later, so I paid that. However, went to buy my next pen today and the 5mg is now on their website for £139. I queried it with them and was basically told tough. Has anyone else noticed wierd price fluctuations? Now I need a 7.5 pen, that of course is more again so Im feeling a bit peeved.