She is a tailor and tells her customers to buy from certain shops in return for a percentage

No File Exists
Check below answers in case you are looking for other related questions:
Beauty salon offers bridal makeup services that cost more than other services
Ruling on rent-to-own schemes

No File Exists
Related Answers:
The landlord did not fix a problem with the window, then water got in and damaged the tenant’s mattress; is he liable?
Is it permissible to rent from kaafirs?
Ruling on fixing or maintaining mobile phones and selling them
Beauty salon offers bridal makeup services that cost more than other services
Ruling on rent-to-own schemes

Recommended answers for you:
She dislikes her husband but he refuses to divorce her and he does not give her her rights
Why doesnt Allaah answer our duaas?
Conditions of wiping over socks
Dhikr after salaah and before sleeping
Ruling on amulets and hanging them up; do amulets ward off the evil eye and hasad (envy)?