This looks far from over. Tesco has bid for Dobbies as they want non grocery business and cannot open many more stores. It is partly their answer to Homebase. The Hunter group who own the largest Scottish garden centre business does not want Tesco to get it and have doubled their stake to 20% (announced today). It could take some time yet to resolve this with the price moving higher day by day.

can anyone advise of the latest position with Tesco's 15 bid?

looks like game over s/price below 15 the company doing there best to drive it down and doing a good job at it.