SNN2609XX---_1771806aA FURIOUS mum yesterday told how her disabled son was barred from going in a Tesco store — because he had a wheeled walking frame.  Sarah Francis, 29, was shocked when a security guard stopped her at the entrance.

He told her and autistic son Mason, five: “You’re not allowed in with that — it’s got wheels.”

Pregnant Sarah said she explained that Mason — who has a rare genetic disorder affecting his movement and speech — needed the frame to walk.

Close to tears, she then ignored the guard and carried on into the shop with Mason to buy a cake for his gran’s birthday.

Sarah said: “I was completely taken aback. I explained to him that my son needed to use it to walk but he wouldn’t budge. It was unbelievable.

“When Mason walks with the aid, you can see he’s not having fun on it — it’s clearly not a toy. I had to control the urge to burst into tears.

“I walked around the security guard with Mason and he didn’t stop us so I just kept going to the aisle.

“He could have come up to me and addressed what happened — or just have said sorry to Mason.”

Nursery nurse Sarah, who is seven months’ pregnant with her second child, complained to Tesco about Wednesday’s incident in Osterley, West London.

But she and telecommunications engineer husband Titus, 34, said they were still waiting for an apology.

Sarah said: “If someone called me back within an hour and just said sorry for what’s happened, I might have forgiven them. All I wanted is an apology for my son.” Sarah, from nearby Hillingdon, said she would stop using the Tesco Extra.

And she was overwhelmed with messages of support on Facebook after her comments about the ordeal were re-posted 2,000 times.

Sue Cherrington wrote: “OMG — their trolleys have wheels don’t they, how come they are acceptable. This is very wrong x”

Tesco later insisted the guard mistook Mason’s red frame — similar to the one used by Britain’s Got Talent teen comic Jack Carroll — for a child’s scooter or bike.

A spokesman said: “We apologise sincerely for this misunderstanding, and have apologised to Ms Francis directly. At first our security guard thought this was a scooter or bike, which are not allowed in stores.

“As soon as he realised it was a mobility aid, he apologised and welcomed the customer and her son into the store.”

The Sun By KATY DOCHERTY and KATIE EARLAM