Slim Fast question on tea and coffee???

I will be starting a slim-fast program tomorrow. They recommend sugar
substitute sweeteners and 2% milk. I'm fine with that. I will be having a
shake in the morning and a meal replacement bar at lunch. A fruit snack in
the afternoon and a sensible dinner at night.

My question is this. I love drinking tea (orange pekoe). Do you think it
would be alright if I had a small cup of tea at night with 2% milk and sugar
sweetener substitute. I couldn't find any information on their website
concerning the drinking of tea and coffee.

Thanks in advance for the help.