<prompt> Human: So, this is my first post in personalfinance, wasnt sure if this was the best place or legaladvice but this seemed most appropriate.Posting on behalf of my partner who doesnt have an account. Ill keep it concise.My partner recently opened a credit card account with a 5,000 limit. She thought she was 2,000 in debt only to check it at the beginning of this month to find there was 4,000 on it. She immediately phoned the bank and asked them to put a hold on the card, which they did, telling her they would notify her if the card was used in the meantime.Unfortunately, without really thinking she shared this information with her mother, who we now realise is almost certainly the person who spent the money. This meant that she stopped using my partners credit card.My partner lives with her family, so her mother had plenty of opportunity to take note of the card details. She was the person to open the letter when the card first arrived, and its likely she saw that it had a very large limit.At my partners request, the bank has sent her correspondence detailing the transactions, which were all carried out online. The IP address matches that of their family home. My partner made a list of all the transactions which were not by her. Over the course of a month and a half the mother managed to spend the best part of 2,000, all with relatively small transactions of 200 or less, on things like clothes, beauty products etc. My partner has confronted the mother who is just flat out denying she had anything to do with it. She has previous form; many years ago taking out loans in partners name, destroying my partners credit rating. She also stole thousands from an inheritance fund. This was around 5 years ago, so the fears had subsided. I know a lot of threads on here deal with much bigger sums of money, but my partner is currently living on a student loan studying a masters and a 150 a month job, so were really struggling with this.If anyone has ANY advice about what we may be able to do I would be very grateful. Thanks.TL;DR: My SOs mother spent 2,000 on her credit card. SO Lives with the parent so there is no real way to prove it wasnt SO. Edited for clarity: Posted last night on my phone and a few bits made no sense.  <response>: The biggest problem I have here is when you say she has done this numerous times. I hate to say it, but if you dont turn her in and make her face the consequences, you are enabling her mom. She knows what she is doing is wrong. She has done it before. And she will do it again.Tough love is still love.If you do nothing, your girlfriend is going to pay her moms bills. Fact. 