As a long term O2 customer, will I get a better deal on a new iphone 14pro contract if i phone them to haggle?

[snow patrol]

Hi all, been with o2 for at least 15 years i'd say. Currently on a rolling contract with my iphone 11 but looking to upgrade but pay a bit less than the £63 a month the website is quoting me for the 256gig model. Is it likely i'll be offered a better deal by giving them a ring or have things changed on that front now?

Many thanks!