Hi Morningdelight. You can also apply a family visit visa for your parents, but in my case i cannot provide a salary certificate which is part of the requirement as my employer won't give me anyway, reason why i chose to apply from a travel agent a tourist visa for my mom.

As for your question, i don't really know the answer, sorry. But as per the explanation of the agent, every visa which is not properly cancelled is being reflected in MOI against their company and might cause them big trouble as well.

Probably the reason of blacklisting (?)