DTDC Courier & Cargo — Unloading of household good not provided as a service after taking payment

We had booked DTDC packers and movers to shift our household items from Bangalore to Tirunelveli. Consignment number: [protected]. Firstly, for shifting a house, they did not send promised size truck but sent a mini 7 ft truck even after collecting the list, we had the call and get a 14ft truck after a lot of calls.
Unloading as a service was added in the invoice, however no team arrived at destination for unloading. There was only a driver to unload double cots a big sofa. I need a refund for the amount taken for unloading as a service. This is the worst packers and movers experience we have had.