Allen Career Institute — 2nd set study material not received/employee always change statement on call

Respected sir/madam,

my son ayush kumar enrolled in dlp program for neet in may 17 his enrollment no is[protected]. I received 1 st set of books in june 17 after that i did not receive any other set till now.
I am writing few lines for your information.
on 22 aug. My son told me that book set of next exam has not been received. I called to [protected] and madam told me that it has been sent, when i told that it has not been recived, she assured to find out and contact back, on 24 aug it has been confirmed that the set was returned back. I requested to send it immediately. On 25 aug. When i rung to mr navin confirmed that by today they will dispatch. On 28 aug. When try to confirm mr praveen confirmed-[protected] that it has been sent on 26 aug and will take 2-3 days to deliver. Today when i contacted the person who gave me 1 st set mob no-[protected], he told that he did not received, then from morning i tried to call [protected]/53 till now no body is picking phone, as it continuously ringing, again called madam, [protected], and told her to confirm, mr anil a r traders [protected] called me and 1 st he told that he talked to delhi and delhi person who is dealing confirmed that he called to me, when i taken the no [protected] mr mohan he told that there is communication gap, he thought for other candidate, he did not receive the book set. Again mr anil called me and told that he did not recive book set from allen for further dispatch, then again called ms divya, then she told that she try to confirm. Then mr navin called me from [protected] and told that 2 times it has been returned so today he will dispatch by india post.
i request to find out when 2 phone number i have given, and study material returned, nobody have responsibility to call me. I made continuous conversation from 22 aug 17 till now 30 aug 17, nobody bothers and always tell lie and not dispatched. Earlier on 25 aug mr navin told that it has been returned once by now on 30n aug how it has been returned twice. And why he told earlier that he will sent on 25 aug. Why on 28 mr praveen given wrong information.
please find out and reply earliest as waiting for reply for further action.

sanjeev kumar roy
f/o ayush kumar [protected]