E-Thottam — non receipt of products.

I have placed an order on 29th april 2020 through the portal e-thottam run by tamil nadu horticulture dept., i paid rs.660/- thro sbi debit card, and received the sms from my bank regarding the debiting of amount from my a/c. To e-thottam portal with taxation number. My order number is 40632, and for the last 4 days, i am trying to use their help line and customer support and emails nothing is responding i. E. They r not replying to my mail or answering my calls including the general inquiry number, is either ringing or busy or switched off, and mails i had send some 6 to 7 mails to mail id but no response from them, kindly get back my money or ask them to deliver the products for rs.660/- i have placed, pls help me.