@shazzeb Hello, I'm so sorry that this has happened to you!
There are a few things you could do :
1. Try repairing your game. Go to Sims 4 homepage and click on Manage. Then choose Repair.
2. Uninstall the pack and request a refund ( not always available)
https://help.ea.com/uk/help-top-issues/?product=the-sims-43. Contact EA via EA Help and tell them about your issue. They may be able to advise you further
https://help.ea.com/uk/help-top-issues/?product=the-sims-4Hope this helps xx 🙂