Please Help

Firstly , I would love to thank you all! B&W is the best site ever. It is very difficult live with horrible illnesses day to day and we had no where to turn to seek help . I am once again very thankful for all the extremely valuable informations that you provide to us.
You might remember that I received a letter saying I didn't need a fave to face medical for my PIP.
After this letter I waited good few weeks to receive my decision. Finally 'brown envelope ' came last Wednesday.
I have been awarded enhanced for both daily living and mobility until September 2017. (My initial award was supposed to end april 2016.)
Letter says, they will not review my claim until August 2016 then on first page it says 'they will review my claim after 2020. Which is very confusing but I think this can be a admin error. What do you think?
I cannot tell you all that how happy I am. I read all your guides and provided lots of evidences, doctor letters etc.
Thank you all very much !

Thank you Gordon.
I think I will have my review again in 2016. But I might ring DWP to make this clear.
Once again, I am thanking you for all your help. I am very ill and my disabilities making my life so hard everyday. I always worked before I fell very ill. I had no idea how the benefit system works and what they expect from me etc. Being disabled one thing and trying to explain your own life to the complete strangers other thing. I didn't even know how to explain myself on the form.
Thank you so much again for all valuable and extremely helpful guidance you are providing to the people like me.
I renewed my membership again for this year and I will definitely continue to do so. 20 pounds is nothing compering to the all the information you give.

Thank you millions, Gordon, bro58 , Mrs H and to all of you.

Hi,
I was awarded my PIP last year for 2 years. And last April, I received a new form from DWP saying 'we are looking into your award again' . So I filled it send it back. Only two weeks ago I received my new award letter saying my award is for two years . My new award said , we will not contact you before 2016 and you will have a review after 2020. Do I rang DWP to clarify and I was given 5 days for call back. No one has called me.
Today, I received a brand new form from DWP saying 'we are against looking at you PIP' . It's the exactly the same one that I just filled in April and only 2 weeks ago I received my new award form.
I am so confused and stressed . It's too late ring them now and I really don't know what to think. Does DWP make mistake sending new forms when they shouldn't ?
Thank you.

I forgot to mention;
My award decision letter and how you disability affects you form were sent on the same day.
It's really bizarre. How can they give me award decision and also send me a new form on the same day ?
Thank you.