Thinking about changing course after submitting my UCAS and receiving offers

Hi, I’ve sent off my UCAS application for chemistry and I’ve received offers already but I’m thinking about studying maths instead. I don’t know what to do. Any advice will be really helpful !

Are you looking to take Maths at your current uni choices?

Some of them, 2 of the unis I’ve applied to require further maths but the other three do not.
Since u don’t take further maths I’m looking to do maths at the unis that don’t require it.

In that case just contact the admissions teams at those unis. The quicker the better, (assuming you're certain). They'll let you know if a swap is possible.