For a first allegation the penalties range from a written warning, 0% for the piece of work that has had the allegation against it, and 0% for the module the piece of work is part of.
For further allegations some of the same penalties can be considered with a further two penalties also being possible. 0% for the year of study and being withdrawn from the University.
If you have multiple penalties, they will usually become more severe each time, it is important to provide evidence of any relevant mitigation (health or personal issues) to possibly lower the penalty you will be given.
Regardless of how many allegations you have had if it relates to commissioning, withdrawal from the University would be considered and you would be invited to a meeting.