If your results do not arrive on Saturday 25th January you will need to contact the AQE and/or the PPTC directly depending on which test(s) you are waiting results on.

AQE (CEA) Contact details
Website: https://aqe.org.uk
Phone: (028) 90224002
Email: info@aqe.org.uk
The AQE telephone lines will be open from 2pm on Saturday 25th January. This facility is only to allow parents who, for any reason, have not received their results. General queries should be left until Monday 27th January, so the telephone lines can be kept free for those who need it urgently.

PPTC (GL Assessment) Contact details
As the PPTC does not have a central office, email or telephone number you should try to contact the grammar school where your child sat the GL Assessment. You should be able to get a contact email address and/or telephone number from their school website. PPTC Assessment Centres

You could also try to contact your child's primary school to see if they received the results.