Hi ive had a issue whilst trying to replace the filter

watched a  few DIYs to see how it was done, looked quite straight forward, but when i tried removing

one of the plug, i snapped the (collar) of the plug, it went back on fine and having the car running there seems to be

no leak or issues, so basically want to know when i can get a replacement (plug) as ive tried looking but with no luck

also should i be worried that the the plug will not hold under driving, conditions?

the plugs where slightly different to what ive seen in other videos, theirs a (plastic collar) which holds them in place and not (push in clips)

the videos i watched just mention pushing in on the plastic collar and then gently pulling, maybe my plug was a little brittle?

any thoughts or advise 

Anyone ?