Ikea Atlant siphon too short at the sink installation tips

Hello,

the white pipe from the overflow to the siphon is 3-4 cm too short for me even though it is fully extended.

Does anyone have a tip for me whether there are suitable extensions or spare parts for this?

If needed, I can also send photos that describe the whole dilemma. I couldn't find anything suitable at the hardware store yet.

Thanks and regards,
scootie81

Hello, that must not be the case. The siphon that Ikea sells for the sinks must also fit. Please upload pictures here.