Not had any issues like that. I did however cut around the face slightly that annoyed me. I guess its the style of the silicon being so soft.
Email them and ask the question. I find them very good to deal with regarding any queries I've had..It would be nice to know if you can replace the band and face (Ie the silicon parts) and a rough idea of price, however id be chasing yours up though as a warranty issue

On a side not the shop i bought mine from (a local store) ask me all the time about it and the my use. The discounts i have received from them since the purchase have almost paid for the watch itself