Consumer Redressal

I have recently shifted from Pune to Delhi and I contacted Agarwal Transpotech Pvt.Ltd. Packers and Movers service company to move my stuff. They asked me to send the photographs of my items and material that needed shifting on phone and said it will cost 11,500 rs in total. My material was loaded on 8th july 2020. However they didnt give me the bill instead of asking them again and again and said that your amount will be 11,500 rs only. I was given no information of tax and service charges. Now they are doubling the amount to 19,321 rs and I have recieved bill today itself i.e. after 4 days. I contacted their company based on repute of its Creater Fauji Ramesh Agarwal sir. I dont want to take this matter to consumer court but if this is not sorted I will have no other option but report this matter to court. Note: Mr Anand with phone number 09024444088 agreed with me with the amount of Rs 11, 500/- on whatsapp. A person with phone number 09672005693 packed by material and asked me a tip of Rs. 6000/- to Rs. 7000/-. I have send the company the screenshots of the conversations of Mr Anand who gave me the bill today but mentioned an earlier date, and also of the agreed amount, and of the person who asked me for tip (the amount was asked orally at the pickup location). I was informed that I need not pay anything more than Rs. 11, 500/- and now they have doubled the amount. I am sure Fauji sir is not aware about the corrupted people working under him. I have lost my job and this is how people in this company are sucking and harassing money out of me. I request a legal action.