We travelled down as a family ( two daughters age 8 & 11) to watch Hugh Jackman show at O2 and chose to stay here. On arrival staff were pleasant and let us have the keys for our room early which was situated in the site across the road. We was pleasantly surprised at how spacious our family room was, two double beds along with a sofa and a little kitchen area as we walked in (although basic as just cupboards sink and fridge) for a budget hotel we was happy. Unpacked got ready and went to the show, we didn't get back till late so all went to sleep quite quickly. In the morning we got up to go for the breakfast offered and there was a cleaner in the corridor, we came back half an hour later and straight away noticed the £10 note and change on the side had gone. The room hadn't been cleaned as we was leaving that morning so my husband decided to go speak to reception as they had cctv cameras outside our door. At this point my children were getting worried someone had been in our room/was still in our room that I had to go open the wardrobe and check everywhere to calm them down. On his return he said the management was going to look through cctv and come back to us. Within 5 minutes one of the management or other staff member knocked on our door with the cleaner, the cleaner put down the £10 note and said sorry then went whilst the other lady apologised and advised she was new and doesn't speak English however she would be dealt with then left. Our assumption was she would be fired as she must have clearly waited for us to leave the front door then opened our room to look for something. As at the end of the day she had no reason to go in and clean as we was already leaving that morning. We then went to hand back keys and a few staff members were at the reception all who apologised for what had happened, we said how we only received the £10 note back and that there was about £8 coins still missing. They did offer to get her back in but due to what had happened already we was running late and the kids felt uncomfortable we just wanted to get them away. It was then one of them said she will receive a disciplinary for this.... So anyone choosing to stay at this hotel be cautious that they may still have this thieving cleaner and if you see a short dark haired cleaner (I think she was polish maybe Romanian from accent) then make sure nothing valuable is left in your room. Thank you Best Western for making my children's first hotel stay experience that they never want to stay in a hotel again as don't feel safe! I will be reporting this experience to Best Western CEO Rob Patterson.