Your email address will most likely be your surname, first initial and the year you started OLSB, followed by @olsbstudent.bhcet.org.uk whereas your username (which is what is asked for if Teams asks for your 'credentials') will most likely just be your surname, first initial and the year you started school.
So for example, if your name was John Smith and you started Year 7 in 2020:
- Your email address would most likely be smithj20@olsbstudent.bhcet.org.uk
- Your username (used for 'credentials') would most likely be smithj20