Today I went to an Ali Baba to grab a felafel kebab. I asked if the hummus and tahini had dairy in it and the man serving me said no. Though, when he squirted the sauce on the kebab, it was a white colour. When eating it also, it tasted like there was yoghurt in the sauce.
I gave him the benefit of the doubt and ate the kebab, but it's been on my mind ever since. My chef sister was with me and stated that both hummus and tahini at places like that will usually have yoghurt in them.
Nah Ali Baba's hummus and tahini is fine!

Not too sure about the sauce though, I generally just get tomato sauce on my kebabs.
Here's an email I received a few months ago:
"Thank you for your enquiry. Apologies for the late response.
The Falafel product is suitable for Vegan diets, we manufacture this on a protein free line once a week in bulk and the stores are instructed to use a separate fryer for cooking the product. Other products such as Homos, Tabouli and our K’bab bread (manufactured by Peace Bakery) are also Vegan friendly products.
Our chips are Vegan Friendly as they are pre cooked in Vegetable oil (not tallow).
Should you have any further queries do not hesitate to contact us again."