It'll also depend whether your school has added your reference and sent off your application yet. If they haven't, your application won't have been received by UCAS and therefore won't have triggered the SAQ link. Even if it has been, UCAS has been down for maintenance all weekend, so we may not have received your application just yet. I'd say wait until Tuesday because you've got until 22nd October to complete the SAQ.
If you do need to email anyone, you should email the SAQ email rather than the college as we don't have the SAQ link.