I currently have Gfast with a guaranteed speed of 100Mbps and my contract is coming up for renewal. I got a letter inviting me to look at the offers availble and this is what came up

Are the offers non-sensical or have I missed something? On the face of it I am being offered a guaranteed speed faster than would be achieved. Also, by comparing the second and third offers, it seems that complete wi-fi is costing £25.27 a month!