Permanent residency to British citizenship, please help.

I came into the country with a 6 months visiting visa, in 2007, visit visa expired same year...in June 2009 , I got legaly married to my eea wife., RC application made immediately to the home office, In October 2009 I received an acknowledgement letter from home office that says I'm recognised as an era family member and I'm allowed to get a national insurance number and I can work in the UK while my application is being considered....in September 14th 2010 I received my residency card from home office......in may 2015, I was granted a permanent residency.... My question is, when I'm I due for British citizenship? Please help. Thanks everyone for your kind advice

No need for duplicate topics in different parts of the forum. When someone is willing and available to answer your query, I am sure they will.

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