Apologies for not getting back to you sooner, I experienced some temporary connection issues and could not get back on the site until now. All appears to be resolved now so I can continue dealing with your query.
The relevant case in these circumstances is that of Przybylska v Modus Telecom Limited.
There, the employee Miss Przybylska, was employed on a 3 month probationary period, which could have been extended by the employer. During the probation her employment could be terminated with a week’s notice, with a longer period applying once the probation was completed. She was on holiday when her probationary period expired and the employer had not yet taken steps to extend her probationary period. A couple of weeks later she was dismissed with just a week’s notice, as required during her probationary period.
She complained of breach of contract and the decision was that she should have been paid 3 months notice, which would have applied after the completion of her probationary period. The Tribunal said that the assessment on whether to confirm the completion of her probation or extend it should have taken place during the probationary period and if it wanted to the employer should have extended the probationary period before it was due to expire. Therefore, if the employer has not taken steps to extend the probation before it expires, it would be assumed that it has been successfully completed and the terms that would apply following successful completion would be the valid ones.
I trust this has answered your query. I would be grateful if you could please take a second to leave a positive rating (selecting 3, 4 or 5 starts at the top of the page). If for any reason you are unhappy with my response or if you need me to clarify anything before you go - please get back to me on here and I will assist further as best as I can. Thank you