3 Months without account statements

Its been been almost 4 months now without receiving my account statements from JDG group on items have purchased from Hi Fi Corp. i have contacted the customer service line and reported the query to above mentioned two staff, with no assistance. I was told the reason I was not receiving the statements was that they will be sending a a quarterly statement(that never arrived also been a month now). All I want is an updated statement on my accounts and that will be it because of this reckless handling of my query I will not purchase anything from a store that has JDG group as their admin service provider