How to sort out this vital error made by UKVI?

[ILR1980]

Hi people,

I had applied for settlement visa for spouse and twin daughters and have collected the passport of spouse and twin daughters today with 30 days vignette sticker on it but excitement faded away quickly when we looked at start valid date of this vignette visa sticker on these passports

Start valid date for wife and one baby girl is valid from 20 oct to 19 Nov while for second baby girl its valid from 20 Sep to 20 Oct. Spouse was main applicant while twin daughters were dependents and they had all applied together so cannot believe why they made this error and how to recitify it..any suggestions where to contact to sort this mess?

[CR001]

Contact the centre they applied at.

[ILR1980]

Contact the centre they applied at.

Thx for reply
Problem is there is no contact for them..you can only attend this centre in Pakistan when they call you to either submit passport or collect it