hi no it doesnt mean they are suckers. you should be able to see the graft union, where the stems join the root stock. If these are coming from below the root/graft union then less tear them down to remove them. don't cut as this will encourage more growth.
if above the union then they will be the original wanted part.

Could you add a photo of the where they are coming off the plant?

Thank you for the information, have tried to put photo on. but not very good, I did take one, but don,t know where it's gone😞, but thanks for info.Kind regards.

It is in the pictures section and it does look as if it is the right growth going by what i can see. I'd wait and see what the flowers are like. if they turn out not to be the same as the others then 'tear' the stem away.

when you added the photo it went into the photo gallery. usually to add photos to questions you go back to your question and you have several tabs, edit question , add photo and you load it there. But it is visible so no problems.

Thank you.