Change configuration/engine

Hello, I ordered my S60 D5 on January 21st. The confirmation came on January 25th. I haven’t had a delivery date yet… Now I have the following questions: – Since I was too dubious and didn’t really look at it, the seller turned on the automatic transmission instead of the manual transmission. We had talked about the manual transmission all the time, but somehow there was an automatic out there and I didn’t notice it until yesterday. Can you change something now with VOLVO? – In addition, the technical data sheet says that the automatic consumes 8.1l instead of 5.8l compared to the manual transmission. Does that fit like this? That’s actually too much difference, or not?! Yes, I know I should have read this correctly and so, but I’ve now failed because I paid attention to all configuration data, just not this Geartronic -.- Greeting Andrago