They may summon you, but would have no means/authority by which to compel attendance or impose punishment. Further, it's seen as more of a soft power:
> [I]t remains unclear what sanctions it would have at its disposal. Historically, those found guilty of contempts could be fined or imprisoned, but those sanctions have not been used by the Commons since 1666 and 1880 respectively. For all sorts of practical, legal and constitutional reasons, it is highly doubtful that the modern House would seriously consider this.
> [I]t remains unclear what sanctions it would have at its disposal. Historically, those found guilty of contempts could be fined or imprisoned, but those sanctions have not been used by the Commons since 1666 and 1880 respectively. For all sorts of practical, legal and constitutional reasons, it is highly doubtful that the modern House would seriously consider this.
https://www.instituteforgovernment.org.uk/blog/contempt-witn...