We want to make offers like "15% off combo services" but the current offer system lets you add items to the offer inclusion but does not give you specific rule flexibility to say it must be at least a service from " this category AND that category"

The programming behind adding more flexible logic to the offers shouldn't be difficult, it is just a matter of a few more logic gate parameters.

We would have it be done at checkout but we had to do 100% deposits since we cannot do a specific booking deposit amount for an appt. So we don't want to have to refund 15% at checkout from everyones accoutn credits. (hint hint, give us a flate rate per appt booking deposit option)