Some retailers have complained the HMC is too heavy-handed, uses bullying tactics to get them to join the scheme and are just in it to make money.
But the HMC said it existed to give people peace of mind over quality of food, that it wanted to protect high standards and was not bullying anyone.
"They tried to push me in my shop and argue with me, they tried to take my posters down and have been telling people in the local mosque not to buy meat from my shop," Mr Ayub said.
"I buy my meat from a HMC-registered slaughterhouse, my wholesaler has a HMC licence, so why should I pay them £30 a week to sell the meat? They just want money."
The HMC denies his claims, saying it does not go into mosques and "shame" retailers.