Disgusted by lack of follow up after several rounds of interviews - Global Product Manager Vodafone Employee Review

Really horribly disappointed and shocked by a complete lack of follow up from Vodafone IoT & HR division after completing a second round interview for a specialised senior role - this is more easy to understand for a graduate programme where there are 100s of applicants, but providing absolutely no follow up whatsoever for >6 weeks after several rounds of interviews for a senior role, and promising a follow up within 1 week, after being headhunted is the height of unprofessionalism.