Just Bake — cake amount not charged correctly while placing order and later they ketbon calling us saying they charged less and bal should b paid asap

Address:

560040

Dear sir,
I have ordered cake for my brothers bday on 2nd june from just back and i did a online booking on 1st june and just bake ppl gave me whatsapp no and they helped me to book the cake even though i have given them the correct details they have sent a cake where in delayed by 4 hours and name on the cake also wrongly written and most importantly they have charged 1700/- while booking the cake and after two days of booking that is on 3rd they called me back and asking me to pay 2550 in total and saying the cake price is 2550 bymistake they have charged 1700/- and now they r harassing me and speaking to me in high tone and asking me to pay the bal asap and they f not even guilt for their mistake pls help me
Their phone no is ‭+[protected]‬

Below r the attachement wher ein i have clearly told them how and who’s name should b on the cake