If the employment tribunal does ask the employer to re-engage or reinstate the employee and the employer refuses the tribunal will make these awards against the employer on top of the Basic Award and Compensatory Award. The award will be for between 26 - 52 weeks pay up to the maximum of £525 per week, (from 6th April 2019) so between £13,650 and £27,300.
If the employer refuses to take the employee back, the tribunal can also award over these figures if the employee has in fact lost a lot more than this.